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<pre><span class="sourceLineNo">001</span><a name="line.1"></a>
<span class="sourceLineNo">002</span>/*<a name="line.2"></a>
<span class="sourceLineNo">003</span> * Copyright (C) 2014 Archie L. Cobbs. All rights reserved.<a name="line.3"></a>
<span class="sourceLineNo">004</span> *<a name="line.4"></a>
<span class="sourceLineNo">005</span> * $Id: SimpleSchemaField.html 842 2015-03-07 18:20:42Z archie.cobbs $<a name="line.5"></a>
<span class="sourceLineNo">006</span> */<a name="line.6"></a>
<span class="sourceLineNo">007</span><a name="line.7"></a>
<span class="sourceLineNo">008</span>package org.jsimpledb.schema;<a name="line.8"></a>
<span class="sourceLineNo">009</span><a name="line.9"></a>
<span class="sourceLineNo">010</span>import java.util.regex.Pattern;<a name="line.10"></a>
<span class="sourceLineNo">011</span><a name="line.11"></a>
<span class="sourceLineNo">012</span>import javax.xml.stream.XMLStreamException;<a name="line.12"></a>
<span class="sourceLineNo">013</span>import javax.xml.stream.XMLStreamReader;<a name="line.13"></a>
<span class="sourceLineNo">014</span>import javax.xml.stream.XMLStreamWriter;<a name="line.14"></a>
<span class="sourceLineNo">015</span><a name="line.15"></a>
<span class="sourceLineNo">016</span>import org.jsimpledb.core.FieldType;<a name="line.16"></a>
<span class="sourceLineNo">017</span>import org.jsimpledb.core.InvalidSchemaException;<a name="line.17"></a>
<span class="sourceLineNo">018</span>import org.jsimpledb.util.DiffGenerating;<a name="line.18"></a>
<span class="sourceLineNo">019</span>import org.jsimpledb.util.Diffs;<a name="line.19"></a>
<span class="sourceLineNo">020</span><a name="line.20"></a>
<span class="sourceLineNo">021</span>/**<a name="line.21"></a>
<span class="sourceLineNo">022</span> * A simple field in a {@link SchemaObjectType}.<a name="line.22"></a>
<span class="sourceLineNo">023</span> */<a name="line.23"></a>
<span class="sourceLineNo">024</span>public class SimpleSchemaField extends SchemaField implements DiffGenerating&lt;SimpleSchemaField&gt; {<a name="line.24"></a>
<span class="sourceLineNo">025</span><a name="line.25"></a>
<span class="sourceLineNo">026</span>    private String type;<a name="line.26"></a>
<span class="sourceLineNo">027</span>    private long encodingSignature;<a name="line.27"></a>
<span class="sourceLineNo">028</span>    private boolean indexed;<a name="line.28"></a>
<span class="sourceLineNo">029</span><a name="line.29"></a>
<span class="sourceLineNo">030</span>    /**<a name="line.30"></a>
<span class="sourceLineNo">031</span>     * Get the name of this field's type. For example {@code "int"} for primitive integer type,<a name="line.31"></a>
<span class="sourceLineNo">032</span>     * {@code "java.util.Date"} for the built-in {@link java.util.Date} type, any custom type name, etc.<a name="line.32"></a>
<span class="sourceLineNo">033</span>     *<a name="line.33"></a>
<span class="sourceLineNo">034</span>     * @return field type name<a name="line.34"></a>
<span class="sourceLineNo">035</span>     */<a name="line.35"></a>
<span class="sourceLineNo">036</span>    public String getType() {<a name="line.36"></a>
<span class="sourceLineNo">037</span>        return this.type;<a name="line.37"></a>
<span class="sourceLineNo">038</span>    }<a name="line.38"></a>
<span class="sourceLineNo">039</span>    public void setType(String type) {<a name="line.39"></a>
<span class="sourceLineNo">040</span>        this.type = type;<a name="line.40"></a>
<span class="sourceLineNo">041</span>    }<a name="line.41"></a>
<span class="sourceLineNo">042</span><a name="line.42"></a>
<span class="sourceLineNo">043</span>    /**<a name="line.43"></a>
<span class="sourceLineNo">044</span>     * Get whether this field is indexed or not.<a name="line.44"></a>
<span class="sourceLineNo">045</span>     *<a name="line.45"></a>
<span class="sourceLineNo">046</span>     * @return true if this field is indexed<a name="line.46"></a>
<span class="sourceLineNo">047</span>     */<a name="line.47"></a>
<span class="sourceLineNo">048</span>    public boolean isIndexed() {<a name="line.48"></a>
<span class="sourceLineNo">049</span>        return this.indexed;<a name="line.49"></a>
<span class="sourceLineNo">050</span>    }<a name="line.50"></a>
<span class="sourceLineNo">051</span>    public void setIndexed(boolean indexed) {<a name="line.51"></a>
<span class="sourceLineNo">052</span>        this.indexed = indexed;<a name="line.52"></a>
<span class="sourceLineNo">053</span>    }<a name="line.53"></a>
<span class="sourceLineNo">054</span><a name="line.54"></a>
<span class="sourceLineNo">055</span>    /**<a name="line.55"></a>
<span class="sourceLineNo">056</span>     * Get the encoding signature associated with this field's type.<a name="line.56"></a>
<span class="sourceLineNo">057</span>     *<a name="line.57"></a>
<span class="sourceLineNo">058</span>     * @return this field's encoding signature<a name="line.58"></a>
<span class="sourceLineNo">059</span>     * @see org.jsimpledb.core.FieldType<a name="line.59"></a>
<span class="sourceLineNo">060</span>     */<a name="line.60"></a>
<span class="sourceLineNo">061</span>    public long getEncodingSignature() {<a name="line.61"></a>
<span class="sourceLineNo">062</span>        return this.encodingSignature;<a name="line.62"></a>
<span class="sourceLineNo">063</span>    }<a name="line.63"></a>
<span class="sourceLineNo">064</span>    public void setEncodingSignature(long encodingSignature) {<a name="line.64"></a>
<span class="sourceLineNo">065</span>        this.encodingSignature = encodingSignature;<a name="line.65"></a>
<span class="sourceLineNo">066</span>    }<a name="line.66"></a>
<span class="sourceLineNo">067</span><a name="line.67"></a>
<span class="sourceLineNo">068</span>    @Override<a name="line.68"></a>
<span class="sourceLineNo">069</span>    void validate() {<a name="line.69"></a>
<span class="sourceLineNo">070</span>        super.validate();<a name="line.70"></a>
<span class="sourceLineNo">071</span>        if (this.type == null)<a name="line.71"></a>
<span class="sourceLineNo">072</span>            throw new InvalidSchemaException("invalid " + this + ": no type specified");<a name="line.72"></a>
<span class="sourceLineNo">073</span>        if (!Pattern.compile(FieldType.NAME_PATTERN).matcher(this.type).matches()) {<a name="line.73"></a>
<span class="sourceLineNo">074</span>            throw new InvalidSchemaException("invalid " + super.toString() + " type `" + this.type<a name="line.74"></a>
<span class="sourceLineNo">075</span>              + "': does not match pattern \"" + FieldType.NAME_PATTERN + "\"");<a name="line.75"></a>
<span class="sourceLineNo">076</span>        }<a name="line.76"></a>
<span class="sourceLineNo">077</span>    }<a name="line.77"></a>
<span class="sourceLineNo">078</span><a name="line.78"></a>
<span class="sourceLineNo">079</span>    @Override<a name="line.79"></a>
<span class="sourceLineNo">080</span>    public &lt;R&gt; R visit(SchemaFieldSwitch&lt;R&gt; target) {<a name="line.80"></a>
<span class="sourceLineNo">081</span>        return target.caseSimpleSchemaField(this);<a name="line.81"></a>
<span class="sourceLineNo">082</span>    }<a name="line.82"></a>
<span class="sourceLineNo">083</span><a name="line.83"></a>
<span class="sourceLineNo">084</span>    @Override<a name="line.84"></a>
<span class="sourceLineNo">085</span>    boolean isCompatibleWithInternal(AbstractSchemaItem that0) {<a name="line.85"></a>
<span class="sourceLineNo">086</span>        final SimpleSchemaField that = (SimpleSchemaField)that0;<a name="line.86"></a>
<span class="sourceLineNo">087</span>        if (!this.type.equals(that.type))<a name="line.87"></a>
<span class="sourceLineNo">088</span>            return false;<a name="line.88"></a>
<span class="sourceLineNo">089</span>        if (this.encodingSignature != that.encodingSignature)<a name="line.89"></a>
<span class="sourceLineNo">090</span>            return false;<a name="line.90"></a>
<span class="sourceLineNo">091</span>        if (this.indexed != that.indexed)<a name="line.91"></a>
<span class="sourceLineNo">092</span>            return false;<a name="line.92"></a>
<span class="sourceLineNo">093</span>        return true;<a name="line.93"></a>
<span class="sourceLineNo">094</span>    }<a name="line.94"></a>
<span class="sourceLineNo">095</span><a name="line.95"></a>
<span class="sourceLineNo">096</span>// DiffGenerating<a name="line.96"></a>
<span class="sourceLineNo">097</span><a name="line.97"></a>
<span class="sourceLineNo">098</span>    @Override<a name="line.98"></a>
<span class="sourceLineNo">099</span>    public Diffs differencesFrom(SimpleSchemaField that) {<a name="line.99"></a>
<span class="sourceLineNo">100</span>        final Diffs diffs = new Diffs(super.differencesFrom(that));<a name="line.100"></a>
<span class="sourceLineNo">101</span>        if (!(this.type != null ? this.type.equals(that.type) : that.type == null))<a name="line.101"></a>
<span class="sourceLineNo">102</span>            diffs.add("changed field type from `" + that.type + "' to `" + this.type + "'");<a name="line.102"></a>
<span class="sourceLineNo">103</span>        if (this.encodingSignature != that.encodingSignature)<a name="line.103"></a>
<span class="sourceLineNo">104</span>            diffs.add("changed field type encoding signature from " + that.encodingSignature + " to " + this.encodingSignature);<a name="line.104"></a>
<span class="sourceLineNo">105</span>        if (this.indexed != that.indexed)<a name="line.105"></a>
<span class="sourceLineNo">106</span>            diffs.add((this.indexed ? "added" : "removed") + " index on field");<a name="line.106"></a>
<span class="sourceLineNo">107</span>        return diffs;<a name="line.107"></a>
<span class="sourceLineNo">108</span>    }<a name="line.108"></a>
<span class="sourceLineNo">109</span><a name="line.109"></a>
<span class="sourceLineNo">110</span>// XML Reading<a name="line.110"></a>
<span class="sourceLineNo">111</span><a name="line.111"></a>
<span class="sourceLineNo">112</span>    @Override<a name="line.112"></a>
<span class="sourceLineNo">113</span>    void readAttributes(XMLStreamReader reader, int formatVersion) throws XMLStreamException {<a name="line.113"></a>
<span class="sourceLineNo">114</span>        super.readAttributes(reader, formatVersion);<a name="line.114"></a>
<span class="sourceLineNo">115</span>        final String typeAttr = this.getAttr(reader, TYPE_ATTRIBUTE, false);<a name="line.115"></a>
<span class="sourceLineNo">116</span>        if (typeAttr != null)<a name="line.116"></a>
<span class="sourceLineNo">117</span>            this.setType(typeAttr);<a name="line.117"></a>
<span class="sourceLineNo">118</span>        final Boolean indexedAttr = this.getBooleanAttr(reader, INDEXED_ATTRIBUTE, false);<a name="line.118"></a>
<span class="sourceLineNo">119</span>        if (indexedAttr != null)<a name="line.119"></a>
<span class="sourceLineNo">120</span>            this.setIndexed(indexedAttr);<a name="line.120"></a>
<span class="sourceLineNo">121</span>        final Long encodingSignatureAttr = this.getLongAttr(reader, ENCODING_SIGNATURE_ATTRIBUTE, false);<a name="line.121"></a>
<span class="sourceLineNo">122</span>        if (encodingSignatureAttr != null)<a name="line.122"></a>
<span class="sourceLineNo">123</span>            this.setEncodingSignature(encodingSignatureAttr);<a name="line.123"></a>
<span class="sourceLineNo">124</span>    }<a name="line.124"></a>
<span class="sourceLineNo">125</span><a name="line.125"></a>
<span class="sourceLineNo">126</span>    @Override<a name="line.126"></a>
<span class="sourceLineNo">127</span>    final void writeXML(XMLStreamWriter writer) throws XMLStreamException {<a name="line.127"></a>
<span class="sourceLineNo">128</span>        this.writeXML(writer, true);<a name="line.128"></a>
<span class="sourceLineNo">129</span>    }<a name="line.129"></a>
<span class="sourceLineNo">130</span><a name="line.130"></a>
<span class="sourceLineNo">131</span>// XML Writing<a name="line.131"></a>
<span class="sourceLineNo">132</span><a name="line.132"></a>
<span class="sourceLineNo">133</span>    void writeXML(XMLStreamWriter writer, boolean includeName) throws XMLStreamException {<a name="line.133"></a>
<span class="sourceLineNo">134</span>        writer.writeEmptyElement(SIMPLE_FIELD_TAG.getNamespaceURI(), SIMPLE_FIELD_TAG.getLocalPart());<a name="line.134"></a>
<span class="sourceLineNo">135</span>        this.writeAttributes(writer, includeName);<a name="line.135"></a>
<span class="sourceLineNo">136</span>    }<a name="line.136"></a>
<span class="sourceLineNo">137</span><a name="line.137"></a>
<span class="sourceLineNo">138</span>    @Override<a name="line.138"></a>
<span class="sourceLineNo">139</span>    final void writeAttributes(XMLStreamWriter writer, boolean includeName) throws XMLStreamException {<a name="line.139"></a>
<span class="sourceLineNo">140</span>        super.writeAttributes(writer, includeName);<a name="line.140"></a>
<span class="sourceLineNo">141</span>        this.writeSimpleAttributes(writer);<a name="line.141"></a>
<span class="sourceLineNo">142</span>        if (this.encodingSignature != 0) {<a name="line.142"></a>
<span class="sourceLineNo">143</span>            writer.writeAttribute(ENCODING_SIGNATURE_ATTRIBUTE.getNamespaceURI(), ENCODING_SIGNATURE_ATTRIBUTE.getLocalPart(),<a name="line.143"></a>
<span class="sourceLineNo">144</span>              "" + this.encodingSignature);<a name="line.144"></a>
<span class="sourceLineNo">145</span>        }<a name="line.145"></a>
<span class="sourceLineNo">146</span>    }<a name="line.146"></a>
<span class="sourceLineNo">147</span><a name="line.147"></a>
<span class="sourceLineNo">148</span>    void writeSimpleAttributes(XMLStreamWriter writer) throws XMLStreamException {<a name="line.148"></a>
<span class="sourceLineNo">149</span>        if (this.type != null)<a name="line.149"></a>
<span class="sourceLineNo">150</span>            writer.writeAttribute(TYPE_ATTRIBUTE.getNamespaceURI(), TYPE_ATTRIBUTE.getLocalPart(), this.type);<a name="line.150"></a>
<span class="sourceLineNo">151</span>        if (this.indexed)<a name="line.151"></a>
<span class="sourceLineNo">152</span>            writer.writeAttribute(INDEXED_ATTRIBUTE.getNamespaceURI(), INDEXED_ATTRIBUTE.getLocalPart(), "" + this.indexed);<a name="line.152"></a>
<span class="sourceLineNo">153</span>    }<a name="line.153"></a>
<span class="sourceLineNo">154</span><a name="line.154"></a>
<span class="sourceLineNo">155</span>// Object<a name="line.155"></a>
<span class="sourceLineNo">156</span><a name="line.156"></a>
<span class="sourceLineNo">157</span>    @Override<a name="line.157"></a>
<span class="sourceLineNo">158</span>    public String toString() {<a name="line.158"></a>
<span class="sourceLineNo">159</span>        return super.toString()<a name="line.159"></a>
<span class="sourceLineNo">160</span>          + (this.type != null ? " of type " + this.type : "")<a name="line.160"></a>
<span class="sourceLineNo">161</span>          + (this.encodingSignature != 0 ? " (encoding " + this.encodingSignature + ")" : "");<a name="line.161"></a>
<span class="sourceLineNo">162</span>    }<a name="line.162"></a>
<span class="sourceLineNo">163</span><a name="line.163"></a>
<span class="sourceLineNo">164</span>    @Override<a name="line.164"></a>
<span class="sourceLineNo">165</span>    public boolean equals(Object obj) {<a name="line.165"></a>
<span class="sourceLineNo">166</span>        if (obj == this)<a name="line.166"></a>
<span class="sourceLineNo">167</span>            return true;<a name="line.167"></a>
<span class="sourceLineNo">168</span>        if (!super.equals(obj))<a name="line.168"></a>
<span class="sourceLineNo">169</span>            return false;<a name="line.169"></a>
<span class="sourceLineNo">170</span>        final SimpleSchemaField that = (SimpleSchemaField)obj;<a name="line.170"></a>
<span class="sourceLineNo">171</span>        return (this.type != null ? this.type.equals(that.type) : that.type == null)<a name="line.171"></a>
<span class="sourceLineNo">172</span>          &amp;&amp; this.encodingSignature == that.encodingSignature<a name="line.172"></a>
<span class="sourceLineNo">173</span>          &amp;&amp; this.indexed == that.indexed;<a name="line.173"></a>
<span class="sourceLineNo">174</span>    }<a name="line.174"></a>
<span class="sourceLineNo">175</span><a name="line.175"></a>
<span class="sourceLineNo">176</span>    @Override<a name="line.176"></a>
<span class="sourceLineNo">177</span>    public int hashCode() {<a name="line.177"></a>
<span class="sourceLineNo">178</span>        return super.hashCode()<a name="line.178"></a>
<span class="sourceLineNo">179</span>          ^ (this.type != null ? this.type.hashCode() : 0)<a name="line.179"></a>
<span class="sourceLineNo">180</span>          ^ ((Long)this.encodingSignature).hashCode()<a name="line.180"></a>
<span class="sourceLineNo">181</span>          ^ (this.indexed ? 1 : 0);<a name="line.181"></a>
<span class="sourceLineNo">182</span>    }<a name="line.182"></a>
<span class="sourceLineNo">183</span><a name="line.183"></a>
<span class="sourceLineNo">184</span>// Cloneable<a name="line.184"></a>
<span class="sourceLineNo">185</span><a name="line.185"></a>
<span class="sourceLineNo">186</span>    @Override<a name="line.186"></a>
<span class="sourceLineNo">187</span>    public SimpleSchemaField clone() {<a name="line.187"></a>
<span class="sourceLineNo">188</span>        return (SimpleSchemaField)super.clone();<a name="line.188"></a>
<span class="sourceLineNo">189</span>    }<a name="line.189"></a>
<span class="sourceLineNo">190</span>}<a name="line.190"></a>
<span class="sourceLineNo">191</span><a name="line.191"></a>




























































</pre>
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